PuTTY

PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It is a versatile terminal program for Windows. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port. It is the world's most popular free SSH client. It supports SSH, telnet, and raw socket connections with good terminal emulation. It supports public key authentication and Kerberos single-sign-on